/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package net.phoenix.repository.iterator;

import javax.jcr.Node;
import javax.jcr.NodeIterator;

/**
 * Jigsaw server
 * 
 * @author    <a href="shamphone@gmail.com">Li XiongFeng</a>
 * @date      2012-1-15
 * @version   1.0.0
 */
public abstract class AbstractNodeIterator implements NodeIterator{
	protected int position = 0;

	/**
	 * Returns <tt>true</tt> if the iteration has more elements.
	 * 
	 * @return <tt>true</tt> if the iterator has more elements.
	 */
	public boolean hasNext() {
		return this.position < this.getSize();
	}

	/**
	 * Returns the next element in the iteration.
	 * 
	 * @return the next element in the iteration.
	 */
	public Node next() {
		return this.nextNode();
	}



	/**
	 * Removes from the underlying collection the last element returned by
	 * the iterator (optional operation).
	 * 
	 * @todo Implement this java.util.Iterator method
	 */
	public void remove() {
		throw new UnsupportedOperationException();
	}

	/* (non-Javadoc)
	 * @see javax.jcr.RangeIterator#skip(long)
	 */
	public void skip(long skipNum) {
		this.position += skipNum;
	}

	/* (non-Javadoc)
	 * @see javax.jcr.RangeIterator#getPosition()
	 */
	public long getPosition() {
		return this.position;
	}



}
